Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface showing my new design; and,

FIG. 2 is a front detail view thereof, shown separately for clarity of illustration.

The evenly spaced broken lines in the figures show portions of a graphical user interface, and form no part of the claimed design.

The dot-dash broken lines in the figures define the boundary of the claimed design and form no part thereof.

The dot-dot-dash broken line showing of the display screen or portion thereof is for environmental purposes only and forms no part of the claimed design. 

CLAIM I claim the ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 